--- /dev/null
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ *
+ ******************************************************************************/
+#define _RTW_STA_MGT_C_
+
+#include <osdep_service.h>
+#include <drv_types.h>
+#include <recv_osdep.h>
+#include <xmit_osdep.h>
+#include <mlme_osdep.h>
+#include <sta_info.h>
+#include <linux/vmalloc.h>
+
+static void _rtw_init_stainfo(struct sta_info *psta)
+{
+ memset((u8 *)psta, 0, sizeof(struct sta_info));
+
+ spin_lock_init(&psta->lock);
+ INIT_LIST_HEAD(&psta->list);
+ INIT_LIST_HEAD(&psta->hash_list);
+ _rtw_init_queue(&psta->sleep_q);
+ psta->sleepq_len = 0;
+
+ _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv);
+ _rtw_init_sta_recv_priv(&psta->sta_recvpriv);
+
+#ifdef CONFIG_88EU_AP_MODE
+
+ INIT_LIST_HEAD(&psta->asoc_list);
+
+ INIT_LIST_HEAD(&psta->auth_list);
+
+ psta->expire_to = 0;
+
+ psta->flags = 0;
+
+ psta->capability = 0;
+
+ psta->bpairwise_key_installed = false;
+
+#ifdef CONFIG_88EU_AP_MODE
+ psta->nonerp_set = 0;
+ psta->no_short_slot_time_set = 0;
+ psta->no_short_preamble_set = 0;
+ psta->no_ht_gf_set = 0;
+ psta->no_ht_set = 0;
+ psta->ht_20mhz_set = 0;
+#endif
+
+ psta->under_exist_checking = 0;
+
+ psta->keep_alive_trycnt = 0;
+
+#endif /* CONFIG_88EU_AP_MODE */
+
+}
+
+u32 _rtw_init_sta_priv(struct sta_priv *pstapriv)
+{
+ struct sta_info *psta;
+ s32 i;
+
+
+ pstapriv->pallocated_stainfo_buf = vzalloc(sizeof(struct sta_info) * NUM_STA + 4);
+
+ if (!pstapriv->pallocated_stainfo_buf)
+ return _FAIL;
+
+ pstapriv->pstainfo_buf = pstapriv->pallocated_stainfo_buf + 4 -
+ ((size_t)(pstapriv->pallocated_stainfo_buf) & 3);
+
+ _rtw_init_queue(&pstapriv->free_sta_queue);
+
+ spin_lock_init(&pstapriv->sta_hash_lock);
+
+ pstapriv->asoc_sta_count = 0;
+ _rtw_init_queue(&pstapriv->sleep_q);
+ _rtw_init_queue(&pstapriv->wakeup_q);
+
+ psta = (struct sta_info *)(pstapriv->pstainfo_buf);
+
+ for (i = 0; i < NUM_STA; i++) {
+ _rtw_init_stainfo(psta);
+
+ INIT_LIST_HEAD(&(pstapriv->sta_hash[i]));
+
+ list_add_tail(&psta->list, get_list_head(&pstapriv->free_sta_queue));
+
+ psta++;
+ }
+
+#ifdef CONFIG_88EU_AP_MODE
+
+ pstapriv->sta_dz_bitmap = 0;
+ pstapriv->tim_bitmap = 0;
+
+ INIT_LIST_HEAD(&pstapriv->asoc_list);
+ INIT_LIST_HEAD(&pstapriv->auth_list);
+ spin_lock_init(&pstapriv->asoc_list_lock);
+ spin_lock_init(&pstapriv->auth_list_lock);
+ pstapriv->asoc_list_cnt = 0;
+ pstapriv->auth_list_cnt = 0;
+
+ pstapriv->auth_to = 3; /* 3*2 = 6 sec */
+ pstapriv->assoc_to = 3;
+ pstapriv->expire_to = 3; /* 3*2 = 6 sec */
+ pstapriv->max_num_sta = NUM_STA;
+#endif
+
+
+ return _SUCCESS;
+}
+
+inline int rtw_stainfo_offset(struct sta_priv *stapriv, struct sta_info *sta)
+{
+ int offset = (((u8 *)sta) - stapriv->pstainfo_buf)/sizeof(struct sta_info);
+
+ if (!stainfo_offset_valid(offset))
+ DBG_88E("%s invalid offset(%d), out of range!!!", __func__, offset);
+
+ return offset;
+}
+
+inline struct sta_info *rtw_get_stainfo_by_offset(struct sta_priv *stapriv, int offset)
+{
+ if (!stainfo_offset_valid(offset))
+ DBG_88E("%s invalid offset(%d), out of range!!!", __func__, offset);
+
+ return (struct sta_info *)(stapriv->pstainfo_buf + offset * sizeof(struct sta_info));
+}
+
+/* this function is used to free the memory of lock || sema for all stainfos */
+static void rtw_mfree_all_stainfo(struct sta_priv *pstapriv)
+{
+ struct list_head *plist, *phead;
+ struct sta_info *psta = NULL;
+
+
+ spin_lock_bh(&pstapriv->sta_hash_lock);
+
+ phead = get_list_head(&pstapriv->free_sta_queue);
+ plist = phead->next;
+
+ while (phead != plist) {
+ psta = container_of(plist, struct sta_info , list);
+ plist = plist->next;
+ }
+
+ spin_unlock_bh(&pstapriv->sta_hash_lock);
+
+}
+
+static void rtw_mfree_sta_priv_lock(struct sta_priv *pstapriv)
+{
+ rtw_mfree_all_stainfo(pstapriv); /* be done before free sta_hash_lock */
+}
+
+u32 _rtw_free_sta_priv(struct sta_priv *pstapriv)
+{
+ struct list_head *phead, *plist;
+ struct sta_info *psta = NULL;
+ struct recv_reorder_ctrl *preorder_ctrl;
+ int index;
+
+ if (pstapriv) {
+ /* delete all reordering_ctrl_timer */
+ spin_lock_bh(&pstapriv->sta_hash_lock);
+ for (index = 0; index < NUM_STA; index++) {
+ phead = &(pstapriv->sta_hash[index]);
+ plist = phead->next;
+
+ while (phead != plist) {
+ int i;
+ psta = container_of(plist, struct sta_info , hash_list);
+ plist = plist->next;
+
+ for (i = 0; i < 16; i++) {
+ preorder_ctrl = &psta->recvreorder_ctrl[i];
+ del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
+ }
+ }
+ }
+ spin_unlock_bh(&pstapriv->sta_hash_lock);
+ /*===============================*/
+
+ rtw_mfree_sta_priv_lock(pstapriv);
+
+ if (pstapriv->pallocated_stainfo_buf)
+ vfree(pstapriv->pallocated_stainfo_buf);
+ }
+
+ return _SUCCESS;
+}
+
+struct sta_info *rtw_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
+{
+ s32 index;
+ struct list_head *phash_list;
+ struct sta_info *psta;
+ struct __queue *pfree_sta_queue;
+ struct recv_reorder_ctrl *preorder_ctrl;
+ int i = 0;
+ u16 wRxSeqInitialValue = 0xffff;
+
+
+ pfree_sta_queue = &pstapriv->free_sta_queue;
+
+ spin_lock_bh(&(pfree_sta_queue->lock));
+
+ if (list_empty(&pfree_sta_queue->queue)) {
+ spin_unlock_bh(&pfree_sta_queue->lock);
+ psta = NULL;
+ } else {
+ psta = container_of((&pfree_sta_queue->queue)->next, struct sta_info, list);
+ list_del_init(&(psta->list));
+ spin_unlock_bh(&pfree_sta_queue->lock);
+ _rtw_init_stainfo(psta);
+ memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
+ index = wifi_mac_hash(hwaddr);
+ RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_, ("rtw_alloc_stainfo: index=%x", index));
+ if (index >= NUM_STA) {
+ RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("ERROR => rtw_alloc_stainfo: index >= NUM_STA"));
+ psta = NULL;
+ goto exit;
+ }
+ phash_list = &(pstapriv->sta_hash[index]);
+
+ spin_lock_bh(&(pstapriv->sta_hash_lock));
+
+ list_add_tail(&psta->hash_list, phash_list);
+
+ pstapriv->asoc_sta_count++;
+
+ spin_unlock_bh(&pstapriv->sta_hash_lock);
+
+/* Commented by Albert 2009/08/13 */
+/* For the SMC router, the sequence number of first packet of WPS handshake will be 0. */
+/* In this case, this packet will be dropped by recv_decache function if we use the 0x00 as the default value for tid_rxseq variable. */
+/* So, we initialize the tid_rxseq variable as the 0xffff. */
+
+ for (i = 0; i < 16; i++)
+ memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i], &wRxSeqInitialValue, 2);
+
+ RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_,
+ ("alloc number_%d stainfo with hwaddr = %pM\n",
+ pstapriv->asoc_sta_count , hwaddr));
+
+ init_addba_retry_timer(pstapriv->padapter, psta);
+
+ /* for A-MPDU Rx reordering buffer control */
+ for (i = 0; i < 16; i++) {
+ preorder_ctrl = &psta->recvreorder_ctrl[i];
+
+ preorder_ctrl->padapter = pstapriv->padapter;
+
+ preorder_ctrl->enable = false;
+
+ preorder_ctrl->indicate_seq = 0xffff;
+ preorder_ctrl->wend_b = 0xffff;
+ preorder_ctrl->wsize_b = 64;/* 64; */
+
+ _rtw_init_queue(&preorder_ctrl->pending_recvframe_queue);
+
+ rtw_init_recv_timer(preorder_ctrl);
+ }
+
+ /* init for DM */
+ psta->rssi_stat.UndecoratedSmoothedPWDB = (-1);
+ psta->rssi_stat.UndecoratedSmoothedCCK = (-1);
+
+ /* init for the sequence number of received management frame */
+ psta->RxMgmtFrameSeqNum = 0xffff;
+ }
+
+exit:
+ return psta;
+}
+
+/* using pstapriv->sta_hash_lock to protect */
+u32 rtw_free_stainfo(struct adapter *padapter , struct sta_info *psta)
+{
+ int i;
+ struct __queue *pfree_sta_queue;
+ struct recv_reorder_ctrl *preorder_ctrl;
+ struct sta_xmit_priv *pstaxmitpriv;
+ struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
+ struct sta_priv *pstapriv = &padapter->stapriv;
+
+
+ if (psta == NULL)
+ goto exit;
+
+ pfree_sta_queue = &pstapriv->free_sta_queue;
+
+ pstaxmitpriv = &psta->sta_xmitpriv;
+
+ spin_lock_bh(&pxmitpriv->lock);
+
+ rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q);
+ psta->sleepq_len = 0;
+
+ rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending);
+
+ list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
+
+ rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending);
+
+ list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
+
+ rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending);
+
+ list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
+
+ rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending);
+
+ list_del_init(&(pstaxmitpriv->be_q.tx_pending));
+
+ spin_unlock_bh(&pxmitpriv->lock);
+
+ list_del_init(&psta->hash_list);
+ RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("\n free number_%d stainfo with hwaddr=0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x\n", pstapriv->asoc_sta_count , psta->hwaddr[0], psta->hwaddr[1], psta->hwaddr[2], psta->hwaddr[3], psta->hwaddr[4], psta->hwaddr[5]));
+ pstapriv->asoc_sta_count--;
+
+ /* re-init sta_info; 20061114 */
+ _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv);
+ _rtw_init_sta_recv_priv(&psta->sta_recvpriv);
+
+ del_timer_sync(&psta->addba_retry_timer);
+
+ /* for A-MPDU Rx reordering buffer control, cancel reordering_ctrl_timer */
+ for (i = 0; i < 16; i++) {
+ struct list_head *phead, *plist;
+ struct recv_frame *prhdr;
+ struct recv_frame *prframe;
+ struct __queue *ppending_recvframe_queue;
+ struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
+
+ preorder_ctrl = &psta->recvreorder_ctrl[i];
+
+ del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
+
+ ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
+
+ spin_lock_bh(&ppending_recvframe_queue->lock);
+
+ phead = get_list_head(ppending_recvframe_queue);
+ plist = phead->next;
+
+ while (!list_empty(phead)) {
+ prhdr = container_of(plist, struct recv_frame, list);
+ prframe = (struct recv_frame *)prhdr;
+
+ plist = plist->next;
+
+ list_del_init(&(prframe->list));
+
+ rtw_free_recvframe(prframe, pfree_recv_queue);
+ }
+
+ spin_unlock_bh(&ppending_recvframe_queue->lock);
+ }
+
+ if (!(psta->state & WIFI_AP_STATE))
+ rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, false);
+
+#ifdef CONFIG_88EU_AP_MODE
+
+ spin_lock_bh(&pstapriv->auth_list_lock);
+ if (!list_empty(&psta->auth_list)) {
+ list_del_init(&psta->auth_list);
+ pstapriv->auth_list_cnt--;
+ }
+ spin_unlock_bh(&pstapriv->auth_list_lock);
+
+ psta->expire_to = 0;
+
+ psta->sleepq_ac_len = 0;
+ psta->qos_info = 0;
+
+ psta->max_sp_len = 0;
+ psta->uapsd_bk = 0;
+ psta->uapsd_be = 0;
+ psta->uapsd_vi = 0;
+ psta->uapsd_vo = 0;
+ psta->has_legacy_ac = 0;
+
+ pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
+ pstapriv->tim_bitmap &= ~BIT(psta->aid);
+
+ if ((psta->aid > 0) && (pstapriv->sta_aid[psta->aid - 1] == psta)) {
+ pstapriv->sta_aid[psta->aid - 1] = NULL;
+ psta->aid = 0;
+ }
+
+ psta->under_exist_checking = 0;
+
+#endif /* CONFIG_88EU_AP_MODE */
+
+ spin_lock_bh(&(pfree_sta_queue->lock));
+ list_add_tail(&psta->list, get_list_head(pfree_sta_queue));
+ spin_unlock_bh(&pfree_sta_queue->lock);
+
+exit:
+
+
+ return _SUCCESS;
+}
+
+/* free all stainfo which in sta_hash[all] */
+void rtw_free_all_stainfo(struct adapter *padapter)
+{
+ struct list_head *plist, *phead;
+ s32 index;
+ struct sta_info *psta = NULL;
+ struct sta_priv *pstapriv = &padapter->stapriv;
+ struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo(padapter);
+
+
+ if (pstapriv->asoc_sta_count == 1)
+ return;
+
+ spin_lock_bh(&pstapriv->sta_hash_lock);
+
+ for (index = 0; index < NUM_STA; index++) {
+ phead = &(pstapriv->sta_hash[index]);
+ plist = phead->next;
+
+ while (phead != plist) {
+ psta = container_of(plist, struct sta_info , hash_list);
+
+ plist = plist->next;
+
+ if (pbcmc_stainfo != psta)
+ rtw_free_stainfo(padapter , psta);
+ }
+ }
+ spin_unlock_bh(&pstapriv->sta_hash_lock);
+}
+
+/* any station allocated can be searched by hash list */
+struct sta_info *rtw_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
+{
+ struct list_head *plist, *phead;
+ struct sta_info *psta = NULL;
+ u32 index;
+ u8 *addr;
+ u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
+
+ if (hwaddr == NULL)
+ return NULL;
+
+ if (IS_MCAST(hwaddr))
+ addr = bc_addr;
+ else
+ addr = hwaddr;
+
+ index = wifi_mac_hash(addr);
+
+ spin_lock_bh(&pstapriv->sta_hash_lock);
+
+ phead = &(pstapriv->sta_hash[index]);
+ plist = phead->next;
+
+ while (phead != plist) {
+ psta = container_of(plist, struct sta_info, hash_list);
+
+ if ((!memcmp(psta->hwaddr, addr, ETH_ALEN)) == true) {
+ /* if found the matched address */
+ break;
+ }
+ psta = NULL;
+ plist = plist->next;
+ }
+
+ spin_unlock_bh(&pstapriv->sta_hash_lock);
+ return psta;
+}
+
+u32 rtw_init_bcmc_stainfo(struct adapter *padapter)
+{
+ struct sta_info *psta;
+ u32 res = _SUCCESS;
+ unsigned char bcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+ struct sta_priv *pstapriv = &padapter->stapriv;
+
+
+ psta = rtw_alloc_stainfo(pstapriv, bcast_addr);
+
+ if (psta == NULL) {
+ res = _FAIL;
+ RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("rtw_alloc_stainfo fail"));
+ goto exit;
+ }
+
+ /* default broadcast & multicast use macid 1 */
+ psta->mac_id = 1;
+
+exit:
+ return res;
+}
+
+struct sta_info *rtw_get_bcmc_stainfo(struct adapter *padapter)
+{
+ struct sta_info *psta;
+ struct sta_priv *pstapriv = &padapter->stapriv;
+ u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+ psta = rtw_get_stainfo(pstapriv, bc_addr);
+ return psta;
+}
+
+u8 rtw_access_ctrl(struct adapter *padapter, u8 *mac_addr)
+{
+ u8 res = true;
+#ifdef CONFIG_88EU_AP_MODE
+ struct list_head *plist, *phead;
+ struct rtw_wlan_acl_node *paclnode;
+ u8 match = false;
+ struct sta_priv *pstapriv = &padapter->stapriv;
+ struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
+ struct __queue *pacl_node_q = &pacl_list->acl_node_q;
+
+ spin_lock_bh(&(pacl_node_q->lock));
+ phead = get_list_head(pacl_node_q);
+ plist = phead->next;
+ while (phead != plist) {
+ paclnode = container_of(plist, struct rtw_wlan_acl_node, list);
+ plist = plist->next;
+
+ if (!memcmp(paclnode->addr, mac_addr, ETH_ALEN)) {
+ if (paclnode->valid) {
+ match = true;
+ break;
+ }
+ }
+ }
+ spin_unlock_bh(&pacl_node_q->lock);
+
+ if (pacl_list->mode == 1)/* accept unless in deny list */
+ res = (match) ? false : true;
+ else if (pacl_list->mode == 2)/* deny unless in accept list */
+ res = (match) ? true : false;
+ else
+ res = true;
+
+#endif
+
+ return res;
+}
Code Review / kvmfornfv.git / blobdiff